1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_NET_NET_LOG_LOGGER_H_
6#define CHROME_BROWSER_NET_NET_LOG_LOGGER_H_
7#pragma once
8
9#include "base/memory/scoped_handle.h"
10#include "chrome/browser/net/chrome_net_log.h"
11
12class FilePath;
13
14// NetLogLogger watches the NetLog event stream, and sends all entries to
15// VLOG(1) or a path specified on creation.  This is to debug errors that
16// prevent getting to the about:net-internals page.
17//
18// Relies on ChromeNetLog only calling an Observer once at a time for
19// thread-safety.
20class NetLogLogger : public ChromeNetLog::ThreadSafeObserver {
21 public:
22  // If |log_path| is empty or file creation fails, writes to VLOG(1).
23  // Otherwise, writes to |log_path|.  Uses one line per entry, for
24  // easy parsing.
25  explicit NetLogLogger(const FilePath &log_path);
26  ~NetLogLogger();
27
28  // ThreadSafeObserver implementation:
29  virtual void OnAddEntry(net::NetLog::EventType type,
30                          const base::TimeTicks& time,
31                          const net::NetLog::Source& source,
32                          net::NetLog::EventPhase phase,
33                          net::NetLog::EventParameters* params);
34
35 private:
36  ScopedStdioHandle file_;
37
38  DISALLOW_COPY_AND_ASSIGN(NetLogLogger);
39};
40
41#endif  // CHROME_BROWSER_NET_NET_LOG_LOGGER_H_
42
43